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arxiv: cond-mat/0503279 · v1 · submitted 2005-03-11 · ❄️ cond-mat.soft · cond-mat.other

Noise enhanced performance of ratchet cellular automata

Dusan Babic (1 , 2) , Clemens Bechinger (1) ((1) 2. Physikalisches Institut , Universitaet Stuttgart , Stuttgart , Germany , (2) Faculty for Mathematics , Physics
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University of Ljubljana Ljubljana Slovenia)
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classification ❄️ cond-mat.soft cond-mat.other
keywords cellulardissipativeinteractingnoiseparticlesratchetalternativeapproach
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We present the first experimental realization of a ratchet cellular automaton (RCA) which has been recently suggested as an alternative approach for performing logical operations with interacting (quasi) particles. Our study was performed with interacting colloidal particles which serve as a model system for other dissipative systems i.e. magnetic vortices on a superconductor or ions in dissipative optical arrays. We demonstrate that noise can enhance the efficiency of information transport in RCA and consequently enables their optimal operation at finite temperatures.

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